Page 280 - Renewable Energy Devices and System with Simulations in MATLAB and ANSYS

11 Marine and Hydrokinetic

Power Generation and

Power Plants

Eduard Muljadi and Yi-Hsiang Yu

CONTENTS
Abstract ..........................................................................................................................................267
11.1 Introduction ...........................................................................................................................268
11.2 MHK Technologies ...............................................................................................................270
11.2.1 WEC Technologies ...................................................................................................270
11.2.2 CEC Technologies ....................................................................................................273
11.3 Electrical Generation ............................................................................................................273
11.3.1 MHK Generators ......................................................................................................274
11.3.1.1 Fixed-Speed Induction Generator: Type 1 MHK Generator ......................274
11.3.1.2 Variable-Slip Wound-Rotor Induction Generator with Adjustable
External Rotor Resistance: Type 2 MHK Generator..................................275
11.3.1.3 Variable-Speed Doubly Fed Induction Generator–Partial-Size Power
Converter: Type 3 MHK Generator............................................................275
11.3.1.4 Variable-Speed Full-Power Converter: Type 4 MHK Generator ...............276
11.3.2 Prime Mover .............................................................................................................276
11.3.3 Direct Drive/Gearbox................................................................................................277
11.3.4 Control and Power Conversion .................................................................................277
11.3.5 MHK Power Plant .....................................................................................................278
11.3.5.1 Plant-Level Control ....................................................................................278
11.3.5.2 Plant-Level Compensation .........................................................................279
11.4 Energy Storage ......................................................................................................................280
11.4.1 WEC Generator ........................................................................................................280
11.4.2 CEC Generator ..........................................................................................................281
11.5 Problems and Exercises ........................................................................................................281
11.5.1 WEC Generator ........................................................................................................281
11.5.2 CEC Generator ..........................................................................................................284
11.6 Homework Problems ............................................................................................................287
11.7 Summary ...............................................................................................................................288
Acknowledgment ...........................................................................................................................288
References ......................................................................................................................................289

ABSTRACT
Marine and hydrokinetic (MHK) power generation is a relatively new type of renewable generation.
Predecessors such as wind power generation, hydropower plant generation, geothermal generation,
photovoltaic generation, and solar thermal generation have gained a lot of attention because of
their successful implementation. The successful integration of renewable generation into the electric
power grid has energized global power system communities to take the lessons learned, innovations,

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